Simulation grenade throwing device
By using a servo drive and mechanical transmission coordination mechanism to simulate a grenade throwing device, the safe and accurate launching of simulated grenades is achieved, solving the problems of explosion risk and high consumption in live grenade training, and improving training efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HUARU DEFENSE TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-01
AI Technical Summary
Existing live-fire grenade training suffers from high explosion risk, high consumption, and high equipment wear and tear. Furthermore, the design of simulation training devices is insufficient to meet the requirements for remote control and reuse.
A simulated grenade throwing device was designed, which adopts a coordinated mechanism of servo motor drive, mechanical transmission and spring energy storage release. The device enables safe and accurate launching of simulated grenades through remote control, supports dual-shot loading and continuous or alternating launching. Combined with the mechanical limit of the safety latch and electronic signal timing control, the device ensures safe and reliable operation.
It achieves safe and accurate ricochet of simulated hand grenades, reduces training costs, improves training efficiency and safety, and balances training realism and ease of operation.
Smart Images

Figure CN224189089U_ABST
Abstract
Description
A simulated grenade throwing device Technical Field
[0001] This invention relates to the field of live-fire combat training technology, specifically to a simulated grenade throwing device. Background Technology
[0002] A grenade throwing device is a device mounted on a specific location or aerial mobile equipment to launch grenades. It allows for remote-controlled grenade launching to strike and kill targets on the battlefield, making it an indispensable piece of equipment in modern warfare. Live grenades pose an explosive risk, with a short fuse time (typically 3-4 seconds), making them prone to accidents during training due to misoperation or environmental factors. Simulation devices, however, completely avoid these risks through non-explosive mechanisms (such as spring ejection or compressed gas propulsion). Furthermore, live-fire training is costly and results in high equipment wear and tear, while simulation devices are reusable, reducing operating costs.
[0003] With the widespread application of live-fire combat training systems in training bases across the military, simulated grenade throwing devices have gradually become essential simulation training equipment for the army. To meet the practicality requirements of combat training, a simulated grenade throwing device has been designed, which can meet the requirements of remotely controlling grenade throwing in combat training. Summary of the Invention
[0004] Purpose of the invention: The purpose of this invention is to provide a simulated grenade throwing device that can be used in conjunction with a single-soldier combat training system. It can be remotely controlled by a remote controller to throw a simulated grenade to strike a target.
[0005] Technical Solution: The present invention discloses a simulated grenade throwing device, comprising a main unit and a remote controller, which are designed separately. The remote controller is connected to the main unit via a signal connection to control the start and stop of the main unit. The main unit includes a housing with a cavity for accommodating the simulated grenade, a bracket for fixing components, and a main control board for receiving remote control signals. The main control board precisely controls the timing of the servo motor actions through the remote control signals to ensure the reliability of unlocking and ejection. An ejection mechanism is fixedly connected inside the cavity, and a simulated grenade is placed on the ejection mechanism. A power mechanism is fixedly connected to the bracket. After the main control board controls the power mechanism to unlock, the ejection mechanism vertically ejects the simulated grenade placed on it.
[0006] Furthermore, the bracket is fixedly installed in the middle of the shell, dividing the shell into two cavities for accommodating simulated grenades. Each cavity is equipped with a catapult mechanism; it supports loading of dual simulated grenades and supports continuous or alternating catapult firing, thereby improving training efficiency.
[0007] Furthermore, two pressure plates are symmetrically arranged on the top surface of the bracket. The pressure plates are fixed to the bracket by pins and can rotate around the pins. Two rocker plates are arranged at the bottom to restrict the rotation of the pressure plates.
[0008] Furthermore, the ejection mechanism includes a spring fixing plate fixed to the bottom of the cavity, and a cylindrical spring is vertically fixed to the top surface of the spring fixing plate; the spring fixing plate can be replaced with springs of different stiffness to adapt to simulated grenades of different weights.
[0009] Furthermore, the power mechanism includes a servo motor fixed on the bracket, a servo disc fixed on the output shaft of the servo motor, and the servo disc fixedly connected to the boom turntable, driving the boom turntable to rotate.
[0010] Furthermore, the output shaft of the arm-mounted turntable is connected to one end of a linkage rod, and the other end of the linkage rod is connected to a safety latch. The linkage rod has a groove for connecting with the safety latch. The locking end of the safety latch engages with the groove to form a mechanical lock. The safety latch is fixed to the frame by a pin and a torsion spring, and can rotate around the pin and automatically return to its original position. The linkage rod, the safety latch, and the bracket are connected by a shaft pin. The safety latch, through the shaft pin and the spring, forms a mechanical limit that allows it to rotate around the pin and return to its original position without external force interference. The safety latch can be released from its limit by being driven by the arm-mounted turntable via the linkage rod. The limiting function of the safety latch provides a second layer of protection, preventing the simulated hand grenade inside the cavity from being ejected when the device is accidentally triggered by other external forces.
[0011] Furthermore, the main control board has a main control board shell, which can protect the main control board from water and dust.
[0012] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows:
[0013] (1) This invention achieves safe and accurate ejection of simulated hand grenade through a coordinated mechanism of servo drive-mechanical transmission-spring energy storage and release; wherein, the power transmission is a mechanical link of servo motor → servo disc → turntable with arm → linkage rod and rocker → safety latch and pressure plate, which converts rotational motion into spring compression; the safety control is the timing coordination of the limit function of the safety latch and the electronic signal to ensure safe and reliable operation; the vertical ejection is the optimization of energy transmission efficiency by the mechanical design of the spring fixing plate and rocker.
[0014] (2) This invention takes into account the training authenticity, safety and ease of operation, and provides strong support for modern simulation training equipment. Attached Figure Description
[0015] Figure 1 is a schematic diagram of the main unit structure in this invention;
[0016] Figure 2 is a schematic diagram of the remote control in this invention;
[0017] Figure 3 is an exploded view of the host computer in this invention;
[0018] Figure 4 is a schematic diagram of a simulated hand grenade placed in the main unit;
[0019] Figure 5 is a schematic diagram showing the positions of the pressure plate and the simulated hand grenade;
[0020] Figure 6 is a schematic diagram of multiple hosts being fixedly connected by a connecting plate. Detailed Implementation
[0021] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.
[0022] As shown in Figures 1 and 2, a simulated grenade throwing device includes a main unit and a remote controller. The main unit and the remote controller are designed separately. The remote controller is connected to the main unit by signal to control the start and stop of the main unit. The main control board 11 has a main control board shell 12.
[0023] As shown in Figure 3, the main unit includes a housing 10, which has a cavity for accommodating simulated grenades, a bracket 14 for fixing components, and a main control board 11 for receiving remote control signals. The bracket 14 is fixedly installed in the middle of the housing 10, dividing the housing 10 into two cavities for accommodating simulated grenades. A catapult mechanism is fixedly connected inside the cavity, and a simulated grenade is placed on the catapult mechanism, supporting the loading of two simulated grenades.
[0024] A power mechanism is fixedly connected to the bracket 14. After the main control board 11 controls the power mechanism to unlock, the ejection mechanism vertically ejects the simulated grenade placed on it. Two pressure plates 1 are symmetrically arranged on the top surface of the bracket 14. The pressure plates 1 are fixed to the bracket 14 by a pin and can rotate around the pin. A rocker plate 5 is provided at the bottom of the pressure plate 1 to limit the rotation angle of the pressure plate 1. The ejection mechanism includes a spring fixing plate 9 fixed to the bottom of the cavity. A cylindrical spring 8 is vertically fixed on the top surface of the spring fixing plate 9. The power mechanism includes a servo motor 4 fixed to the bracket 14. A servo disk 2 is fixed on the output shaft of the servo motor 4. The servo disk 2 is fixedly connected to the arm-type turntable 3 and drives the arm-type turntable 3 to rotate. The output shaft of the arm-type turntable 3 is connected to one end of the linkage rod 7 and one end of the rocker plate 5. After the rocker plate 5 is driven, it releases the mechanical restriction of the pressure plate 1, and the pressure plate 1 can rotate around the pin under force. The rocker plate 5 is limited by the rocker plate stop 13. The other end of the linkage rod 7 is connected to the safety latch 6. The linkage rod 7 and the safety latch 6 are linked. The safety latch 6 is fixed on the bracket 14 by a pin and can be rotated around the pin by the linkage rod 7 to release the latch limit.
[0025] As shown in Figures 4 and 5, in this embodiment, a single terminal weighs 0.3 kg, and two simulated hand grenades 16 can be placed on either side of a single terminal. The device can be remotely controlled to throw any desired simulated hand grenade 16. As shown in Figure 6, in this embodiment, multiple sets can be connected via a connecting plate 17 to achieve the purpose of loading simulated hand grenades in multiples.
[0026] The working principle and method of this embodiment are as follows:
[0027] The simulated grenade is placed into the cavity of the outer casing 10, and the pressure plate 1 is pressed down by rotating around the pin to fix the grenade's position. The safety latch 6 mechanically locks the ejection mechanism to prevent accidental triggering.
[0028] Remote controller 2 sends a start signal to main control board 11, and main control board controls servo motor 4 to start.
[0029] The output shaft of servo motor 4 drives servo disc 2 to rotate, which in turn drives turntable 3 with arm to rotate. Turntable 3 with arm pushes rocker 5 to release the rotation restriction of pressure plate 1, and at the same time drives linkage rod 7 to move and contact the unlocking of safety latch 6. The movement of linkage rod 7 generates a pulling force that causes safety latch 6 to rotate around the pin, thus releasing the mechanical lock.
[0030] After the simulated grenade is inserted, the spring is compressed and stores energy. The spring fixing plate 9 ensures that the spring is compressed vertically, avoiding energy loss due to deflection.
[0031] When the servo motor 4 drives the turntable 3 with arm to rotate to its limit angle, the rocker arm 5 is pushed to release the rotation restriction of the pressure plate 1. At the same time, the linkage rod 7 drives the safety latch 6 to release its limit, and the spring 8 instantly releases its stored elastic potential energy. The spring 8 springs upward, pushing the simulated grenade vertically out of the cavity, completing the throwing action.
[0032] Servo motor 4 reverses and resets, and the arm turntable 3 and linkage rod 7 return to their initial positions. Safety latch 6 and rocker 5 return to their initial positions, restoring the locked state.
[0033] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims
1. A simulated grenade throwing device, characterized in that: The device includes a main unit and a remote control, which are designed separately. The remote control is connected to the main unit to control the start and stop of the main unit. The main unit includes a housing (10), which has a cavity for accommodating a simulated grenade, a bracket (14) for fixing components, and a main control board (11) for receiving remote control signals. A catapult mechanism is fixedly connected inside the cavity, and a simulated grenade is placed on the catapult mechanism. A power mechanism is fixedly connected to the bracket (14). After the main control board (11) controls the power mechanism to unlock, the catapult mechanism vertically ejects the simulated grenade placed on it.
2. The simulated grenade throwing device according to claim 1, characterized in that: The bracket (14) is fixedly installed in the middle of the outer shell (10), dividing the outer shell (10) into two cavities that accommodate the simulated hand grenade, and each cavity is provided with a catapult mechanism.
3. The simulated grenade throwing device according to claim 2, characterized in that: The top surface of the bracket (14) is symmetrically provided with two pressure plates (1). The pressure plates (1) are fixed to the bracket (14) by a pin and can rotate around the pin. Two rocker plates (5) are provided at the bottom to restrict the rotation of the pressure plates (1).
4. The simulated grenade throwing device according to claim 1, characterized in that: The ejection mechanism includes a spring fixing plate (9) fixed to the bottom of the cavity, and a cylindrical spring (8) is vertically fixed to the top surface of the spring fixing plate (9).
5. The simulated grenade throwing device according to claim 1, characterized in that: The power mechanism includes a servo motor (4) fixed on the bracket (14), and a servo disk (2) is fixed on the output shaft of the servo motor (4). The servo disk (2) is fixedly connected to the arm turntable (3) and drives the arm turntable (3) to rotate.
6. The simulated grenade throwing device according to claim 5, characterized in that: The output shaft of the arm turntable (3) is connected to one end of a linkage rod (7), and the other end of the linkage rod (7) is connected to a safety latch (6). The linkage rod (7) has a groove that connects to the safety latch (6). The locking end of the safety latch (6) is inserted into the groove to form a mechanical lock. The safety latch (6) is fixed on the bracket (14) by a pin and a torsion spring (15) and can rotate around the pin and automatically return to its original position.
7. The simulated grenade throwing device according to claim 1, characterized in that: The main control board (11) has a main control board housing (12).